ulfsmount.h revision 1.9
1 /* $NetBSD: ulfsmount.h,v 1.9 2013/07/28 00:28:33 dholland Exp $ */ 2 /* from NetBSD: ufsmount.h,v 1.39 2012/10/19 17:09:08 drochner Exp */ 3 4 /* 5 * Copyright (c) 1982, 1986, 1989, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. Neither the name of the University nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * @(#)ufsmount.h 8.6 (Berkeley) 3/30/95 33 */ 34 35 #ifndef _UFS_LFS_ULFSMOUNT_H_ 36 #define _UFS_LFS_ULFSMOUNT_H_ 37 38 #include <sys/mount.h> /* struct export_args30 */ 39 40 #ifdef _KERNEL 41 42 #if defined(_KERNEL_OPT) 43 #include "opt_lfs.h" 44 #endif 45 46 #include <sys/mutex.h> 47 48 #include <ufs/lfs/ulfs_extattr.h> 49 #include <ufs/lfs/ulfs_quotacommon.h> 50 51 struct buf; 52 struct inode; 53 struct nameidata; 54 struct timeval; 55 struct uio; 56 struct vnode; 57 58 /* This structure describes the ULFS specific mount structure data. */ 59 struct ulfsmount { 60 /* Abstract vfs-level filesystem structure. */ 61 struct mount *um_mountp; 62 63 /* The block device we're mounted on. */ 64 dev_t um_dev; 65 struct vnode *um_devvp; 66 67 /* type of fs; currently always ULFS1, theoretically also ULFS2 */ 68 u_long um_fstype; 69 70 /* pointer to the filesystem-specific filesystem structure */ 71 struct lfs *um_lfs; 72 73 /* ops table for per-filesystem dispatch */ 74 const struct ulfs_ops *um_ops; 75 76 /* ULFS-level information */ 77 u_int32_t um_flags; /* ULFS flags (below) */ 78 u_long um_nindir; /* indirect ptrs per block */ 79 u_long um_lognindir; /* log2 of um_nindir */ 80 u_long um_bptrtodb; /* indir ptr to disk block */ 81 u_long um_seqinc; /* inc between seq blocks */ 82 int um_maxsymlinklen; 83 int um_dirblksiz; 84 u_int64_t um_maxfilesize; 85 86 /* Extended attribute information. */ 87 struct ulfs_extattr_per_mount um_extattr; 88 89 /* Quota-related material. */ 90 struct vnode *um_quotas[ULFS_MAXQUOTAS]; /* quota files */ 91 kauth_cred_t um_cred[ULFS_MAXQUOTAS]; /* quota file access cred */ 92 union { 93 struct um_q1 { 94 time_t q1_btime[ULFS_MAXQUOTAS]; /* block quota time limit */ 95 time_t q1_itime[ULFS_MAXQUOTAS]; /* inode quota time limit */ 96 char q1_qflags[ULFS_MAXQUOTAS]; /* quota flags */ 97 } um_q1; 98 struct um_q2 { 99 uint64_t q2_bsize; /* block size of quota file */ 100 uint64_t q2_bmask; /* mask for above */ 101 } um_q2; 102 } um_q; 103 #define umq1_btime um_q.um_q1.q1_btime 104 #define umq1_itime um_q.um_q1.q1_itime 105 #define umq1_qflags um_q.um_q1.q1_qflags 106 #define umq2_bsize um_q.um_q2.q2_bsize 107 #define umq2_bmask um_q.um_q2.q2_bmask 108 }; 109 110 struct ulfs_ops { 111 void (*uo_itimes)(struct inode *ip, const struct timespec *, 112 const struct timespec *, const struct timespec *); 113 int (*uo_update)(struct vnode *, const struct timespec *, 114 const struct timespec *, int); 115 int (*uo_truncate)(struct vnode *, off_t, int, kauth_cred_t); 116 int (*uo_valloc)(struct vnode *, int, kauth_cred_t, struct vnode **); 117 int (*uo_vfree)(struct vnode *, ino_t, int); 118 int (*uo_balloc)(struct vnode *, off_t, int, kauth_cred_t, int, 119 struct buf **); 120 void (*uo_unmark_vnode)(struct vnode *); 121 }; 122 123 #define ULFS_OPS(vp) (VFSTOULFS((vp)->v_mount)->um_ops) 124 125 #define ULFS_ITIMES(vp, acc, mod, cre) \ 126 (*ULFS_OPS(vp)->uo_itimes)(VTOI(vp), (acc), (mod), (cre)) 127 #define ULFS_UPDATE(vp, acc, mod, flags) \ 128 (*ULFS_OPS(vp)->uo_update)((vp), (acc), (mod), (flags)) 129 #define ULFS_TRUNCATE(vp, off, flags, cr) \ 130 (*ULFS_OPS(vp)->uo_truncate)((vp), (off), (flags), (cr)) 131 #define ULFS_VALLOC(vp, mode, cr, vpp) \ 132 (*ULFS_OPS(vp)->uo_valloc)((vp), (mode), (cr), (vpp)) 133 #define ULFS_VFREE(vp, ino, mode) \ 134 (*ULFS_OPS(vp)->uo_vfree)((vp), (ino), (mode)) 135 #define ULFS_BALLOC(vp, off, size, cr, flags, bpp) \ 136 (*ULFS_OPS(vp)->uo_balloc)((vp), (off), (size), (cr), (flags), (bpp)) 137 #define ULFS_UNMARK_VNODE(vp) \ 138 (*ULFS_OPS(vp)->uo_unmark_vnode)((vp)) 139 140 /* ULFS-specific flags for um_flags */ 141 #define ULFS_NEEDSWAP 0x01 /* filesystem metadata need byte-swapping */ 142 /* unused 0x02 */ 143 #define ULFS_QUOTA 0x04 /* filesystem has QUOTA (v1) */ 144 #define ULFS_QUOTA2 0x08 /* filesystem has QUOTA2 */ 145 146 /* 147 * Filesystem types 148 */ 149 #define ULFS1 1 150 #define ULFS2 2 151 152 153 /* 154 * Flags describing the state of quotas. 155 */ 156 #define QTF_OPENING 0x01 /* Q_QUOTAON in progress */ 157 #define QTF_CLOSING 0x02 /* Q_QUOTAOFF in progress */ 158 159 /* Convert mount ptr to ulfsmount ptr. */ 160 #define VFSTOULFS(mp) ((struct ulfsmount *)((mp)->mnt_data)) 161 162 /* 163 * Macros to access file system parameters in the ulfsmount structure. 164 * Used by ulfs_bmap. 165 */ 166 #define MNINDIR(ump) ((ump)->um_nindir) 167 #define blkptrtodb(ump, b) ((b) << (ump)->um_bptrtodb) 168 169 /* 170 * Predicate for byte-swapping support. 171 */ 172 #define FSFMT(vp) (((vp)->v_mount->mnt_iflag & IMNT_DTYPE) == 0) 173 174 #endif /* _KERNEL */ 175 176 #endif /* !_UFS_LFS_ULFSMOUNT_H_ */ 177
Indexes created Tue Oct 07 21:09:53 GMT 2025